Animals that lived during the Precambrian times were single celled animals such as stromatolites,(blue-green algae).The earliest forms of invertebrae animals were also in the Late Precambrian.
Evidence of life in the Precambrian Super-Eon are very rare.The earliest evidence comes from the Paleoarchean Era, 3.5 billion years ago in the form of stromatolites from near to Shark Bay in Western...
As far as we know for the majority of the Precambrian super-eon the only life on earth was bacteria.At the very end of the Precambrian multicelled life evolved. Amonst them jellyfish, invertibrates,...